1996BaltA...5..207A

Query : 1996BaltA...5..207A

1996BaltA...5..207A - Baltic Astronomy, 5, 207-215 (1996/July-0)

Program MEGA: transformation of instrumental magnitudes and color indices to the UBVR system.

ANDRUK V. and KHARCHENKO N.

Abstract (from CDS):

The first goal of the photometric part of the MEGA program is the establishment of the sequences of standard magnitudes and color indices by a photoelectric method. From 1984 to 1991, more than 7500 photoelectric UBVR observations of 1141 stars of 4-15.5 magnitudes were carried out at three observatories. The method of reduction of the observations is described. It takes into account color equations between the instrumental and standard magnitudes and colors, the atmospheric extinction and changes of the photometer sensitivity. The accuracy of the photometric data in the final catalog is estimated.

Abstract Copyright: ∼

Journal keyword(s): methods: observational - techniques: photometric (UBVR system) - atmospheric effects

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 NGC 884 OpC 02 22 15.7 +57 08 59           ~ 503 0
2 SA 71- reg 03 17 11.50 +15 24 57.6           ~ 20 0
3 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
4 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
5 NGC 2169 OpC 06 08 31.0 +13 57 46   5.99 5.9     ~ 173 0
6 NGC 2632 OpC 08 39 58.4 +19 36 33           ~ 1733 0
7 Cl Melotte 111 OpC 12 11 54.9 +25 16 36           ~ 520 0
8 SA 107- reg 15 39.2 -00 20           ~ 91 0
9 NGC 6633 OpC 18 27 30.2 +06 38 21           ~ 423 0
10 NAME I Lac As* 22 41 +38.5           ~ 158 0

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